CN103485387B - Canal-irrigation-area pipe water delivery irrigation system - Google Patents
Canal-irrigation-area pipe water delivery irrigation system Download PDFInfo
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- CN103485387B CN103485387B CN201310439420.5A CN201310439420A CN103485387B CN 103485387 B CN103485387 B CN 103485387B CN 201310439420 A CN201310439420 A CN 201310439420A CN 103485387 B CN103485387 B CN 103485387B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 212
- 238000003973 irrigation Methods 0.000 title claims abstract description 102
- 230000002262 irrigation Effects 0.000 title claims abstract description 102
- 230000006837 decompression Effects 0.000 claims abstract description 36
- 238000009423 ventilation Methods 0.000 claims abstract description 20
- 238000007667 floating Methods 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000010813 municipal solid waste Substances 0.000 claims description 7
- 238000001363 water suppression through gradient tailored excitation Methods 0.000 claims 1
- 239000003621 irrigation water Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
本发明渠灌区管道输水灌溉系统涉及水利工程中的灌溉，特别是涉及一种用于渠灌区的灌溉。其目的是为了提供一种能应用于渠灌区的、可实现根据灌水需求及时进行灌溉、节约用水的渠灌区管道输水灌溉系统。本发明包括水源（11）、第一管道（12）、进水闸门（13）、通气孔（14）、通气管进口孔（121）、通气管（15）、分水减压池（21）、进水管（22）、出水管（23）、第一柔性接头（221）、横梁（24）、轴套（25）、摇臂（26）、第一铰接销（261）、阀杆（27）、圆板（271）、密封圈、第二铰接销（262）、浮球杆（28）、浮球（281）、限位杆（29）、杆底座（291）、第二管道（31）、第二柔性接头（231）、给水栓（32）。
The pipeline water delivery irrigation system for a canal irrigation area of the invention relates to irrigation in water conservancy projects, in particular to irrigation for a canal irrigation area. The purpose is to provide a pipeline water delivery irrigation system for canal irrigation areas that can be applied to canal irrigation areas, can realize timely irrigation according to irrigation water demands, and save water. The invention includes a water source (11), a first pipeline (12), a water inlet gate (13), a ventilation hole (14), a ventilation pipe inlet hole (121), a ventilation pipe (15), and a water diversion and decompression pool (21) , water inlet pipe (22), water outlet pipe (23), first flexible joint (221), beam (24), bushing (25), rocker arm (26), first hinge pin (261), valve stem (27 ), circular plate (271), sealing ring, second hinge pin (262), floating ball rod (28), floating ball (281), limit rod (29), rod base (291), second pipe (31 ), the second flexible joint (231), and the water supply plug (32).
Description
技术领域technical field
本发明涉及水利工程中的灌溉，特别是涉及一种用于渠灌区的灌溉。The invention relates to irrigation in water conservancy projects, in particular to irrigation for canal irrigation areas.
背景技术Background technique
用管道代替明渠进行输水灌溉具有节水、节地、省工、省时、省电、灌水及时、地形适应性强等优点。在我国的井灌区，受井的出水流量较小这一条件制约，管网输水灌溉系统通常为“单井——同管径的干支管道——田间给水栓”的应用模式，其简单易学，技术已较成熟，故低压管道输水灌溉工程技术在我国井灌区得到了较大面积的推广应用。但在渠灌区，即流量较大的自流灌区、提水灌区，发展自压管道输水灌溉工程仍处于初步研究阶段，没有规范可依，这是由于与井灌区相比，渠灌区自压管道输水的管道管径大、管道流量大、水流流速高，田间单个给水栓的流量大，同时开启的给水栓多。渠灌区自压管道输水的管道水流流速最高可达3～4m/s，远大于井灌区规范规定的0.5～1.5m/s；渠灌区田间给水栓的流量最高可达250m3/h，远大于井灌区的40～60m3/h左右井的出水量；渠灌区田间给水栓的数量通常为10多个同时出水联用，远大于井灌区通常的单井单给水栓出流；渠灌区干管流量通常在0.5m3/s以上，远大于井灌区的0.011～0.016m3/s；渠灌区干支管的管径常采用600mm以上的刚性管，而井灌区常采用110mm以下管径的塑料管。流量、管径的大小是区别渠灌区和井灌区二者的关键性要素。故渠灌区在管道系统结构、分水调压设施、管网压力、给水栓数量等都与井灌区或城市供水管网有明显的不同，因而不能简单套用井灌区规范进行渠灌区管道输水灌溉工程项目的建设，需要一种新的渠灌区管道输水灌溉系统型式。Using pipelines instead of open channels for water delivery irrigation has the advantages of water saving, land saving, labor saving, time saving, power saving, timely irrigation, and strong terrain adaptability. In my country's well irrigation areas, restricted by the condition that the well's output flow is small, the pipe network water delivery irrigation system is usually an application mode of "single well - trunk and branch pipelines with the same pipe diameter - field water supply plug", which is simple and easy to learn. , the technology is relatively mature, so the low-pressure pipeline water delivery irrigation engineering technology has been popularized and applied in a large area in my country's well irrigation areas. However, in canal irrigation areas, that is, self-flowing irrigation areas and water-lifting irrigation areas with large flow rates, the development of self-pressurized pipeline water delivery irrigation projects is still in the preliminary research stage, and there is no standard to follow. This is because compared with well irrigation areas, self-pressurized pipelines in canal irrigation areas The pipeline for water delivery has a large diameter, a large pipeline flow rate, and a high water flow velocity. The flow rate of a single water supply cock in the field is large, and there are many water supply cocks that are opened at the same time. The water flow velocity of the self-pressurized pipeline in the canal irrigation area can reach a maximum of 3-4m/s, which is much higher than the 0.5-1.5m/s specified in the specification for the well irrigation area; the flow rate of the field water supply plug in the canal irrigation area can reach up to 250m 3 /h. In the well irrigation area, the water output of the well is about 40-60m 3 /h; the number of field water supply cocks in the canal irrigation area is usually more than 10 at the same time, which is much larger than the usual single well and single water supply cock in the well irrigation area; The pipe flow rate is usually above 0.5m 3 /s, which is much higher than the 0.011-0.016m 3 /s in the well irrigation area; the pipe diameter of the trunk and branch pipes in the canal irrigation area often adopts rigid pipes with a diameter of more than 600mm, while the well irrigation area often uses plastic pipes with a diameter of less than 110mm. Tube. The flow rate and pipe diameter are the key factors to distinguish the canal irrigation area from the well irrigation area. Therefore, the pipeline system structure, water diversion and pressure regulation facilities, pipe network pressure, water supply cock quantity, etc. in the canal irrigation area are obviously different from those of the well irrigation area or the urban water supply network, so it is not possible to simply apply the well irrigation area standard for pipeline water irrigation in the canal irrigation area The construction of the project requires a new type of pipeline water delivery irrigation system in the canal irrigation area.
发明内容Contents of the invention
本发明要解决的技术问题是提供一种能应用于渠灌区的、可实现根据灌水需求及时进行灌溉、节约用水的渠灌区管道输水灌溉系统。The technical problem to be solved by the present invention is to provide a pipeline water delivery irrigation system for canal irrigation areas that can be applied to canal irrigation areas, can realize timely irrigation according to irrigation water demands, and save water.
本发明渠灌区管道输水灌溉系统，包括水源，其中所述水源为水库的蓄水、池塘的蓄水或者河道的来水，所述水源的岸墙内埋设有第一管道，第一管道位于所述水源的水面之下，第一管道的进口端与所述水源相通，第一管道的进口端前设有进水闸门，所述水源的岸墙上还设有通气孔，通气孔位于水源的水面之上，第一管道的进口端的管道顶壁上设有通气管进口孔，通气孔与通气管进口孔之间连接有通气管；The pipeline water delivery irrigation system of the canal irrigation area of the present invention includes a water source, wherein the water source is the water storage of the reservoir, the water storage of the pond or the incoming water of the river, and a first pipeline is embedded in the bank wall of the water source, and the first pipeline is located at Below the water surface of the water source, the inlet end of the first pipeline communicates with the water source, and a water inlet gate is arranged in front of the inlet end of the first pipeline, and a ventilation hole is also provided on the bank wall of the water source, and the ventilation hole is located at the water source. Above the water surface, the top wall of the pipeline at the inlet end of the first pipeline is provided with a ventilation pipe inlet hole, and a ventilation pipe is connected between the ventilation hole and the ventilation pipe inlet hole;
还包括分水减压池，所述分水减压池的侧壁上分别穿插设有进水管和出水管，进水管的进口端与所述第一管道的出口端连通，进水管的出口端位于分水减压池内且进水管的出口端开口朝上，所述进水管的出口端自下而上直径逐渐变小，出水管的进口端位于分水减压池内的底部；所述分水减压池内固定有横梁，横梁上固定有轴套，轴套内穿插有摇臂，轴套的前后内侧壁之间的距离等于所述摇臂的宽度，摇臂的第一端通过第一铰接销铰接有阀杆，阀杆的下端固定有圆板，圆板的下端面上固定安装有密封圈，密封圈扣在所述进水管的出口端，摇臂的第二端通过第二铰接销铰接有浮球杆，浮球杆的下端固定有浮球，浮球的外周均匀地设有四根沿竖直方向设置的限位杆，所述四根限位杆的顶部共同固定有圆环，所述分水减压池内的底部设有杆底座，四根限位杆的下端固定在所述杆底座上；It also includes a water-dividing and decompressing pool, the side walls of the water-dividing and decompressing pool are respectively interspersed with water inlet pipes and water outlet pipes, the inlet end of the water inlet pipe communicates with the outlet end of the first pipeline, and the outlet end of the water inlet pipe Located in the water diversion decompression pool and the outlet end of the water inlet pipe opens upward, the outlet end of the water inlet pipe gradually becomes smaller in diameter from bottom to top, and the inlet end of the water outlet pipe is located at the bottom of the water diversion decompression pool; the water diversion pipe A crossbeam is fixed in the decompression pool, a shaft sleeve is fixed on the crossbeam, and a rocker arm is interspersed in the shaft sleeve. The distance between the front and rear inner walls of the shaft sleeve is equal to the width of the rocker arm. The pin is hinged with a valve stem, the lower end of the valve stem is fixed with a circular plate, the lower end of the circular plate is fixed with a sealing ring, the sealing ring is buckled at the outlet end of the water inlet pipe, and the second end of the rocker arm passes through the second hinge pin. A floating ball rod is hinged, and the lower end of the floating ball rod is fixed with a floating ball, and the outer periphery of the floating ball is evenly provided with four limit rods arranged in the vertical direction, and the tops of the four limit rods are jointly fixed with a ring , the bottom of the water diversion and decompression pool is provided with a rod base, and the lower ends of the four limit rods are fixed on the rod base;
还包括第二管道，第二管道上连接有给水栓，第二管道的进口端与所述出水管的出口端连通；It also includes a second pipeline, a water supply plug is connected to the second pipeline, and the inlet end of the second pipeline communicates with the outlet end of the water outlet pipe;
所述水源的海拔高度高于所述分水减压池的海拔高度，所述分水减压池的海拔高度高于所述给水栓的海拔高度。The altitude of the water source is higher than the altitude of the water diversion and decompression pool, and the altitude of the water diversion and decompression pool is higher than the altitude of the water supply cock.
本发明渠灌区管道输水灌溉系统，其中所述进水管的进口端与所述第一管道的出口端通过第一柔性接头连接，所述第二管道的进口端与所述出水管的出口端通过第二柔性接头连接。The pipeline water delivery irrigation system for the canal irrigation area of the present invention, wherein the inlet end of the water inlet pipe is connected to the outlet end of the first pipeline through a first flexible joint, and the inlet end of the second pipeline is connected to the outlet end of the water outlet pipe. connected by a second flexible joint.
本发明渠灌区管道输水灌溉系统，其中所述水源的岸墙边设有拦污栅，拦污栅位于所述进水闸门之前。In the pipeline water delivery irrigation system for the canal irrigation area of the present invention, a trash rack is arranged beside the bank wall of the water source, and the trash rack is located in front of the water inlet gate.
本发明渠灌区管道输水灌溉系统，其中所述第一管道内设有用于测量第一管道内水的流量的量水装置，量水装置离第一管道进口端管口的距离大于第一管道直径的5倍。The pipeline water delivery irrigation system for the canal irrigation area of the present invention, wherein the first pipeline is provided with a water measuring device for measuring the flow rate of the water in the first pipeline, and the distance between the water measuring device and the mouth of the first pipeline inlet port is greater than that of the first pipeline 5 times the diameter.
本发明渠灌区管道输水灌溉系统，其中所述通气孔的直径为25mm～150mm，所述通气管进口孔离第一管道进口端管口的距离小于第一管道的直径。In the pipeline water delivery irrigation system for canal irrigation area of the present invention, the diameter of the ventilation hole is 25 mm to 150 mm, and the distance between the inlet hole of the ventilation pipe and the mouth of the inlet port of the first pipeline is smaller than the diameter of the first pipeline.
本发明渠灌区管道输水灌溉系统，其中所述出水管的位于分水减压池侧壁内的管段上设有防渗环。In the pipeline water delivery irrigation system of the canal irrigation area of the present invention, an anti-seepage ring is provided on the pipe section of the outlet pipe located in the side wall of the water diversion and decompression pool.
本发明渠灌区管道输水灌溉系统与现有技术不同之处在于本发明渠灌区管道输水灌溉系统通过分水减压池对渠灌区水源的来水进行分水减压，以维持分水减压池内的水头，从而能够应用于渠灌区，分水减压池内设置浮球、摇臂、轴套、阀杆，阀杆下端的圆板通过密封圈将分水减压池内的进水管出口端封堵，当分水减压池内的水位降低时，浮球下降通过摇臂和阀杆带动圆板上提而使密封圈脱离进水管的出口端，水进入减压池内，随着分水减压池内水位上升，浮球随之上升，圆板又慢慢重新封堵进水管，从而能够使得减压池的水面保持在设定的高度。当需要进行灌溉时，随时开启给水栓，重复前述的过程，给水栓的出水量和进水管的进水量通过浮子阀的调节达到动态平衡，则圆板上提到一定高度后就保持不动，水流自进水管源源不断地流入分水减压池内，再通过出水管、第二管道输送到田间进行灌溉。所以本发明渠灌区管道输水灌溉系统能够根据灌水需求及时的进行灌溉，由于能够根据需要的水量进行灌水，所以也减少了水资源的浪费。本发明渠灌区管道输水灌溉系统中，进水管进口端处设置通气孔通道用于排放可能渗入管道内的空气，并消除进水闸门后的水流产生的负压。The difference between the pipeline water delivery irrigation system in the canal irrigation area of the present invention and the prior art is that the pipeline water delivery irrigation system in the canal irrigation area of the present invention divides and decompresses the incoming water of the water source in the canal irrigation area through the water division and decompression pool, so as to maintain the water division and reduce the pressure. The water head in the pressure tank can be applied to the canal irrigation area. The floating ball, rocker arm, bushing and valve stem are arranged in the water diversion and decompression tank. Plugging, when the water level in the decompression tank drops, the floating ball drops and lifts the circular plate through the rocker arm and the valve stem, so that the sealing ring is separated from the outlet end of the water inlet pipe, and the water enters the decompression tank, and decompresses with the water decompression As the water level in the pool rises, the floating ball rises accordingly, and the circular plate slowly blocks the water inlet pipe again, so that the water surface of the decompression pool can be kept at the set height. When irrigation is required, turn on the water supply cock at any time and repeat the above-mentioned process. The water output of the water supply cock and the water inlet of the water inlet pipe are adjusted to achieve a dynamic balance through the adjustment of the float valve. The water flows continuously into the water diversion and decompression pool from the water inlet pipe, and then is transported to the field through the water outlet pipe and the second pipe for irrigation. Therefore, the pipeline water delivery irrigation system for the canal irrigation area of the present invention can perform irrigation in a timely manner according to the irrigation demand, and can also reduce the waste of water resources because it can perform irrigation according to the required water volume. In the pipeline water delivery irrigation system of the canal irrigation area of the present invention, the inlet end of the water inlet pipe is provided with a ventilation hole channel for discharging the air that may infiltrate into the pipeline, and eliminating the negative pressure generated by the water flow behind the water inlet gate.
本发明渠灌区管道输水灌溉系统中，第一管道与进水管之间、出水管与第二管道之间采用柔性接头连接是为了防止分水减压池可能沉降后使得管道损坏。本发明渠灌区管道输水灌溉系统中水源的岸墙边设有拦污栅时可防止第一管道进口端前的水草等杂物进入第一管道内。本发明渠灌区管道输水灌溉系统中第一管道内设有用于测量第一管道内水的流量的量水装置时，可方便地随时知晓灌溉用水量。本发明渠灌区管道输水灌溉系统中四根限位杆的顶部共同固定有圆环时可使四根限位杆构成的框架更加稳固。In the pipeline water delivery irrigation system of the canal irrigation area of the present invention, flexible joints are used to connect the first pipeline and the water inlet pipe, and between the outlet pipe and the second pipeline to prevent the pipeline from being damaged after the water diversion and decompression pool may subside. In the pipeline water delivery irrigation system of the canal irrigation area of the present invention, when the bank wall of the water source is provided with a trash rack, it can prevent water plants and other sundries in front of the inlet end of the first pipeline from entering the first pipeline. When the water measuring device for measuring the flow of water in the first pipeline is installed in the first pipeline in the pipeline water delivery irrigation system of the canal irrigation area of the present invention, the irrigation water consumption can be known conveniently at any time. When the rings are jointly fixed on the tops of the four limit rods in the pipeline water delivery irrigation system of the canal irrigation area of the present invention, the frame formed by the four limit rods can be made more stable.
下面结合附图对本发明渠灌区管道输水灌溉系统作进一步说明。The pipeline water delivery irrigation system for canal irrigation area of the present invention will be further described below in conjunction with the accompanying drawings.
附图说明Description of drawings
图1为本发明渠灌区管道输水灌溉系统第一个实施例的结构示意图；Fig. 1 is the structural representation of the first embodiment of the pipeline water delivery irrigation system in the canal irrigation area of the present invention;
图2为图1中A处的局部放大图。FIG. 2 is a partial enlarged view of A in FIG. 1 .
具体实施方式Detailed ways
如图1所示的本发明渠灌区管道输水灌溉系统第一个实施例，包括由河道的来水构成的水源11，水源11的岸墙内埋设有第一管道12，第一管道12采用内径为500mm的钢筋混凝土管，第一管道12位于水源11的水面之下，第一管道12的进口端与水源11相通，第一管道12的进口端前设有进水闸门13，水源11的岸墙上还设有通气孔14，通气孔14位于水源11的水面之上，第一管道12的进口端的管道顶壁上设有通气管进口孔121，通气孔14与通气管进口孔121之间连接有通气管15；还包括分水减压池21，分水减压池21的侧壁上分别穿插设有进水管22和出水管23，进水管22的进口端与第一管道12的出口端通过第一柔性接头221连接，进水管22的出口端位于分水减压池21内且进水管22的出口端开口朝上，出水管23的进口端位于分水减压池21内的底部；分水减压池21内固定有横梁24，参见图2，横梁24上固定有轴套25，轴套25内穿插有摇臂26，轴套25的前后内侧壁之间的距离等于摇臂26的宽度以使摇臂26只能在轴套25内沿竖直方向摆动，摇臂26的第一端通过第一铰接销261铰接有阀杆27，如图1所示，阀杆27的下端固定有圆板271，圆板271的下端面上固定安装有密封圈(密封圈在图中未标出)，密封圈扣在进水管22的出口端，如图2所示，摇臂26的第二端通过第二铰接销262铰接有浮球杆28，浮球杆28的下端固定有浮球281，浮球281的外周设有四根沿竖直方向设置的限位杆29，分水减压池21内的底部设有杆底座291，四根限位杆29的下端固定在杆底座291上，四根限位杆29限制浮球281以使浮球281沿竖直方向升降；还包括第二管道31，第二管道31上连接有给水栓32，第二管道31的进口端与出水管23的出口端通过第二柔性接头231连接，水源11的海拔高度高于分水减压池21的海拔高度，分水减压池21的海拔高度高于给水栓32的海拔高度。As shown in Figure 1, the first embodiment of the pipeline water delivery irrigation system for the canal irrigation area of the present invention includes a water source 11 formed by the incoming water of the river, and a first pipeline 12 is embedded in the bank wall of the water source 11, and the first pipeline 12 adopts A reinforced concrete pipe with an inner diameter of 500mm, the first pipeline 12 is located below the water surface of the water source 11, the inlet end of the first pipeline 12 communicates with the water source 11, and the inlet end of the first pipeline 12 is provided with a water inlet gate 13, and the water source 11 The quay wall is also provided with a ventilation hole 14, the ventilation hole 14 is located above the water surface of the water source 11, and the pipe top wall of the inlet end of the first pipeline 12 is provided with a ventilation pipe inlet hole 121, between the ventilation hole 14 and the ventilation pipe inlet hole 121 There is a ventilation pipe 15 connected between them; it also includes a water-dividing and decompressing pool 21, and the side wall of the water-dividing and decompressing pool 21 is respectively interspersed with a water inlet pipe 22 and an outlet pipe 23, and the inlet end of the water inlet pipe 22 is connected to the first pipe 12. The outlet end is connected by a first flexible joint 221, the outlet end of the water inlet pipe 22 is located in the water-dividing decompression pool 21 and the outlet end opening of the water inlet pipe 22 faces upwards, and the inlet end of the outlet pipe 23 is located in the water-dividing decompression pool 21. Bottom; crossbeam 24 is fixed in water diversion decompression pool 21, referring to Fig. 2, axle sleeve 25 is fixed on crossbeam 24, is interspersed with rocker arm 26 in axle sleeve 25, and the distance between the front and rear inner walls of axle sleeve 25 is equal to rocker The width of the arm 26 is so that the rocker arm 26 can only swing vertically in the axle sleeve 25, and the first end of the rocker arm 26 is hinged with the valve stem 27 by the first hinge pin 261, as shown in Figure 1, the valve stem 27 The lower end of the circular plate 271 is fixed with a sealing ring (the sealing ring is not marked in the figure) on the lower end surface of the circular plate 271, and the sealing ring is buckled on the outlet end of the water inlet pipe 22, as shown in Figure 2, the rocker arm The second end of 26 is hinged with the floating ball bar 28 by the second hinge pin 262, and the lower end of the floating ball bar 28 is fixed with a floating ball 281, and the outer periphery of the floating ball 281 is provided with four limit rods 29 arranged in the vertical direction, The bottom in the water-dividing decompression pool 21 is provided with a rod base 291, and the lower ends of the four stop rods 29 are fixed on the rod base 291, and the four stop rods 29 limit the float 281 so that the float 281 rises and falls in the vertical direction ; Also includes a second pipeline 31, the second pipeline 31 is connected with a water supply cock 32, the inlet end of the second pipeline 31 is connected with the outlet end of the water outlet pipe 23 through a second flexible joint 231, and the altitude of the water source 11 is higher than that of the water diversion The altitude of the decompression pool 21 is higher than the altitude of the water supply cock 32 .
本实施例在使用时，根据灌溉的需要打开给水栓32，分水减压池21内的水在水头压力作用下经第二管道31流至给水栓32进行灌溉，由于限位杆29的阻挡和限制，当分水减压池21内的水位降低时，将使得浮球281下移，于是阀杆27将上提，使得圆板271下的密封圈脱离进水管22的出口端管口，于是第一管道12内的水在水源11的压力作用下进入分水减压池21内以补偿给水栓32用掉的水量，之后分水减压池21内的水面回升将通过摇臂26和阀杆27使得圆板271下的密封圈重新对进水管22的出口端管口进行封堵。When this embodiment is in use, the water supply cock 32 is opened according to the needs of irrigation, and the water in the water diversion and decompression pool 21 flows to the water supply cock 32 through the second pipeline 31 for irrigation under the action of the water head pressure. And limit, when the water level in the water diversion and decompression pool 21 is lowered, the floating ball 281 will move down, so the valve stem 27 will be lifted up, so that the sealing ring under the circular plate 271 is separated from the outlet port of the water inlet pipe 22, so The water in the first pipeline 12 enters the water diversion and decompression pool 21 under the pressure of the water source 11 to compensate for the amount of water consumed by the water supply cock 32, and then the water level in the water diversion and decompression pool 21 rises through the rocker arm 26 and the valve. The rod 27 makes the sealing ring under the circular plate 271 to block the outlet nozzle of the water inlet pipe 22 again.
本实施例在实施时，最好在建造分水减压池21之前对地基进行夯实，以防止分水减压池不均匀沉降。为了防止第一管道12进口端前的水草等杂物进入第一管道12内，本实施例中水源1的岸墙边设有拦污栅4，拦污栅4位于进水闸门13之前。为了方便地随时知晓灌溉用水量，本实施例中第一管道12内设有用于测量第一管道12内水的流量的量水装置5，量水装置5离第一管道12进口端管口的距离大于第一管道12直径的5倍，量水装置可采用电磁流量计、超声波流量计和其他类型的现有流量计。本实施例中通气孔14的直径为70mm，通气管进口孔121离第一管道12进口端管口的距离小于第一管道12的直径。本实施例中出水管23的位于分水减压池21侧壁内的管段上设有防渗环232以防止水沿出水管的墙壁渗漏。本实施例中进水管22的出口端自下而上直径逐渐变小，即呈锥形。为了使四根限位杆29的上端更稳固，四根限位杆29的顶部共同固定有圆环292。在本实施例中，水源11还可以为水库的蓄水或池塘的蓄水。When implementing this embodiment, it is better to tamp the foundation before constructing the water diversion and decompression pool 21, so as to prevent uneven settlement of the water diversion and decompression pool. In order to prevent water plants and other sundries in front of the inlet end of the first pipeline 12 from entering the first pipeline 12 , a trash rack 4 is provided on the bank wall of the water source 1 in this embodiment, and the trash rack 4 is located in front of the water inlet gate 13 . In order to easily know the amount of irrigation water at any time, the first pipeline 12 is provided with a water measuring device 5 for measuring the flow rate of water in the first pipeline 12 in the present embodiment, and the water measuring device 5 is separated from the mouth of the first pipeline 12 inlet ports. The distance is greater than 5 times the diameter of the first pipeline 12, and the water measuring device can adopt electromagnetic flowmeter, ultrasonic flowmeter and other types of existing flowmeters. In this embodiment, the diameter of the air hole 14 is 70 mm, and the distance between the inlet hole 121 of the air pipe and the mouth of the inlet port of the first pipe 12 is smaller than the diameter of the first pipe 12 . In this embodiment, an anti-seepage ring 232 is provided on the section of the outlet pipe 23 located in the side wall of the water diversion and decompression pool 21 to prevent water from leaking along the wall of the outlet pipe. In this embodiment, the outlet end of the water inlet pipe 22 gradually becomes smaller in diameter from bottom to top, that is, it is tapered. In order to make the upper ends of the four limiting rods 29 more stable, the tops of the four limiting rods 29 are jointly fixed with a ring 292 . In this embodiment, the water source 11 may also be the water storage of a reservoir or the water storage of a pond.
以上所述的实施例仅仅是对本发明的优选实施方式进行描述，并非对本发明的范围进行限定，在不脱离本发明设计精神的前提下，本领域普通技术人员对本发明的技术方案作出的各种变形和改进，均应落入本发明权利要求书确定的保护范围内。The above-mentioned embodiments are only descriptions of preferred implementations of the present invention, and are not intended to limit the scope of the present invention. Variations and improvements should fall within the scope of protection defined by the claims of the present invention.
Claims (6)
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| CN201310439420.5A CN103485387B (en) | 2013-09-24 | 2013-09-24 | Canal-irrigation-area pipe water delivery irrigation system |
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| US10207135B2 (en) | 2017-02-23 | 2019-02-19 | Jason Payton | Portable water storage system |
| CN108417136A (en) * | 2018-03-30 | 2018-08-17 | 河海大学 | A demonstration device for water loss in water delivery projects |
| CN109990132B (en) * | 2019-05-09 | 2019-11-08 | 中国水利水电科学研究院 | Multifunctional valve for micro-irrigation pipeline end |
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| CN2129775Y (en) * | 1992-06-04 | 1993-04-14 | 黎和炎 | Irrigation canal water gate |
| RU2063121C1 (en) * | 1994-06-22 | 1996-07-10 | Николай Евгеньевич Чубиков | Flumed canal irrigation main |
| CN2632146Y (en) * | 2003-08-04 | 2004-08-11 | 中国水利水电科学研究院 | Multifunctional pressure-regulating and water dividing controller |
| CN2794156Y (en) * | 2004-10-11 | 2006-07-12 | 河北省水利科学研究院 | Intelligent water taking controller in well irrigation area |
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